Seven & i Holdings Co., Ltd. (株式会社セブン&アイ・ホールディングス) is an American-Japanese diversified retail holdings company headquartered in Nibanchō, Chiyoda, Tokyo. On September 1, 2005, it was established as a result of the integration of three companies: Ito-Yokado, Seven-Eleven Japan, and Denny's Japan. The purpose of this establishment was to create a holding company that would own these three companies. The background behind this decision was that the parent company, Ito-Yokado, was facing deteriorating performance, while its subsidiary, Seven-Eleven Japan, was experiencing growth in both sales and profits and was performing well.

Seven-Eleven Japan Co., Ltd. is a Japanese convenience store chain headquartered in Chiyoda, Tokyo. It is a subsidiary of Seven & I Holdings. The company was established in 1973 as York Seven by the supermarket chain Ito-Yokado in collaboration with Southland Corporation, now known as 7-Eleven, Inc, an American convenience store chain. As of 2022, Seven-Eleven is the largest convenience store chain in Japan in terms of sales and number of stores. Additionally, it is one of the largest retail chains in Japan in terms of sales. In 2004, it acquired full ownership of the original 7-Eleven, Inc.